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Thread: Low to Zero Pressure and pump basket not filling up - HELP

  1. Back To Top    #1

    Join Date
    Apr 2015
    Location
    Burleson/Texas
    Posts
    1

    Low to Zero Pressure and pump basket not filling up - HELP

    I am having issues with the pressure being extremely low. The pump basket is not filling up completely and the water jets are not very strong.
    I have been troubleshooting this issue for the last three days.

    I recently cleaned the filter grids and since then pressure has been almost nothing.
    I lubed the pump lid ring. Today I changed the diffuser o-ring since it show to have some bumps. I also tried using a drain bladder in the skimmer lines to make sure there wasn't any debris clogged.

    What else do I need to consider? This issue is very frustrating.
    15,000 Gal In-ground Gunite Pool/ Chlorine /Pentair FNS 48 D.E. filter / STA RiTE Flotec 1.5 HP Pool Pump /

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Low to Zero Pressure and pump basket not filling up - HELP

    Welcome to TFP!

    This could be caused by a clog somewhere, or by air getting into the suction side plumbing.

    One simple thing to check is to make sure the water level in the skimmer is high enough that no vortex forms. A vortex could draw air down into the pipe.

    Another simple thing to check is to make sure none of the valves that should be open are accidentally closed.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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